JP2764363B2 - Lifting hardware for temporary tents - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in construction sites of buildings and other various buildings to secure a space that is not affected by the weather such as rainfall, snowfall and wind, and to improve work efficiency and work environment. The present invention relates to a lifting hardware for a temporary tent for construction to be installed.

[0002]

2. Description of the Related Art As is well known, most of civil engineering and construction works are carried out outdoors, and are affected by natural conditions such as rainfall, snowfall and wind. The operating rate is extremely reduced, which causes delays in work processes or an increase in construction costs due to a decrease in the operating rate.
In addition, outdoor work that is susceptible to natural conditions as described above not only impairs the health of workers, but also causes slips, falls, and other physical injuries due to the deterioration of the work environment, while reducing the quality of concrete and steel frame welding. It is also a cause. On the other hand, in civil engineering construction work in urban areas, dust and noise are unavoidable due to the construction work, and it is indispensable to give consideration to surrounding areas.

In recent years, for the purpose of improving the working environment as described above, a temporary tent or a dome-type temporary roof device having a structure capable of completely surrounding the entire site or a part of a construction site has been developed, and a part thereof has been developed. Has already been put into practical use. The applicants have also made the following contents for the purpose of enabling on-site work even if there is wind and rain or snowfall, and allowing normal construction work using heavy equipment to proceed under the roof. We are developing a temporary tent and its construction method. That is, a frame member of a temporary tent comprising a mountain-shaped roof member and pillar members with rollers fixed to both ends of the roof member is prepared in advance, and this frame is mounted on a girder attached to a scaffold by one frame. After lifting each frame and fixing multiple frames at a predetermined interval,
The frame unit of the temporary tent is assembled by assembling the cabin between adjacent frames using an aerial work platform, an automatic scaffold, etc., and the canvas is stretched on the roof top of the frame unit. He proposed an invention of a temporary tent and its construction method (Japanese Patent Application No. 4-29924).

[0004]

The present invention is a further development and improvement of the above-mentioned prior invention,
In particular, the present invention proposes a method and an installation jig for a temporary tent for building construction, which cover an upper part of a structure to be constructed and can secure a work space which is not affected by the weather in a building construction work. That is, the temporary tents for building work need to be lifted and re-arranged in sequence according to the progress of the building work. In this case, generally, a method of disassembling the tent frame once, assembling a scaffold for changing the tent frame, and remounting the tent frame for each frame has been adopted.
Also, when the frame is re-mounted, the purlin is erected and the slinging wire is removed using a high-altitude work vehicle. However, the current task is how to safely and efficiently perform refilling work in places where high-altitude work vehicles cannot enter.

[0005] As a method of changing a temporary tent of this type, a construction method of lifting up the entire tent at once by using a mast has been proposed. However, this method has a practical problem that the cost for building the mast and synchronizing the climbing is extremely high.

[0006]

SUMMARY OF THE INVENTION The present inventors have conducted various studies to solve the above-mentioned conventional problems, and as a result, have completed the following method. In other words, in the present invention, the tent frame which is constructed integrally with four frames and three spans as one block is not a method of completely reinventing the entire tent by changing the idea from the conventional method and rebuilding the entire tent by constructing a mast or building a mast. Remove only the main building of the center span and separate it into two units, according to the construction progress of the structure,
A scaffold for refilling is assembled from the place where construction has already been completed, and the above units are lifted one unit at a time on top of them, and then repacked. After the refilling, the main building is handed over between two adjacent units. In this case, four frames and three spans are integrated into one block to reduce the number of man-hours for re-arrangement.

Further, in this construction method, when covering the top of the structure with the temporary tent, the temporary tent does not cover the entire top of the structure, and a part of the temporary tent is used as a space for taking in the material or a temporary space for refilling. The tent frame is left as a storage space, and the tent frame is horizontally movable via a movable trolley for each block, so that the rearrangement position can be set arbitrarily. Here, the technical problem to be solved by the present invention is to use a frame member having a special structure used alone to frame an upper part of a building or an upper part of a construction work space in which the temporary tent is to be constructed, or The present invention proposes a dedicated lifting metal fitting that enables a unit formed by assembling a frame member in a shed to be safely and quickly lifted to a predetermined position without causing any damage to the frame member. is there.

[0008]

That is, the lifting bracket proposed by the present invention has a hook-shaped fitting groove which can hold a long frame member such as a rafter or a purlin obliquely or horizontally. A pair of john ints having an upper end thereof bent outwardly at one end thereof to form a hook portion for hooking a wire, and fixed in an upright direction to the opposite side of the fitting groove. A hanging bracket main body provided with a mounting plate, an L-shaped fixed clamp piece on the upper part of the clamp body, and an L-shaped movable clamp piece and both of the clamp pieces arranged so as to face the clamp piece; It is provided with a tightening bolt that is screwed together to advance and retreat the two clamp pieces so that they can come and go, and has a male ridge formed at the tip of both clamp pieces so as to be fitted and inserted into a pair of concave grooves. Prepare two sets of clamps The clamp is mounted on a frame member having a rectangular cross section having at least a pair of concave grooves which are opened outward at the corners, and an L-shaped member is provided between a clamp body of the clamp and a John Int mounting plate of a main part of the hanging bracket. This is a lifting metal fitting for a temporary tent, which is detachably locked with a bolt and a nut via a joint.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a perspective view of a shed unit used in the present invention, showing a state in which two shed units are installed on an external scaffold of a building to be constructed. FIG. 2 shows the shed unit attached to a building construction site. FIG. 3 is an explanatory view of the state, and FIG. 3 is an explanatory view showing a state in which the roof of the shed unit is covered with a dedicated sheet material. FIG. 4 is a detailed view of a frame member of a unit constituting the hut unit. As can be seen from the figure, the temporary tent according to the present invention uses two unit frame members 3 and integrally connects the two arranged frame members with support members including purlins 4 and braces 5. (Hereinafter, may be simply referred to as a unit) assembled on a pair of external scaffolds 7 provided on the outside of the building or on both sides of the construction work space. A plurality of units 6a, 6b arranged side by side,
And a side surface of the frame member is covered with a tent canvas (hereinafter simply referred to as a sheet material) 10 so as to be openable and closable.

Here, the structure of the unit frame member will be described. This frame member 3 is fixed to a mountain shape when assembling a cabin, and a pair of rafters 1, 1 constituting a roof portion, and an eaves side end portion of the rafter. And the supports 2 and 2 fixed to the support. Each of the rafters 1 and the struts 2 is formed of a high-strength, lightweight structural material, and more specifically, is formed of an aluminum alloy hollow elongated member 11 having a substantially rectangular or square cross section as shown in FIG. Further, as shown in the figure, the upper and lower ends of the two opposing side walls 11a, 11a of the hollow elongated material 11 are formed with outwardly open oval-shaped concave grooves 13, 13.
Are formed. As shown in FIG. 5, the concave groove 13 is configured so that the sheet material 10 can be inserted therein and used as a slide groove for pressing and fixing the holding bead 16.

As shown in FIG. 4, between the pair of rafters 1 and 1 and between the rafter 1 and the strut 2, insert connecting fittings 12 or 1 are provided at their ends.
4 and bolted 15. Further, the column 2 is self-standing and fixed by using a pin joint 20 on a base plate of a movable trolley 18 installed on the external scaffold 7 as described later. To assemble the units 6, 6a, 6b ...
A unit in which two frame members 3 are formed using a pair of rafters 1 and 1 assembled in a mountain shape and columns 2 and 2 fixed to both lower ends of the lower part, and two units are arranged side by side. The purlins 4 are erected between the frame members and connected together to form a hut. As described above, the unit of the present invention is greatly characterized in that the ground is easily and quickly laid on a ground or a slab which is not affected by underground construction, reinforcing steel construction, formwork construction, or the like. In addition, it is preferable that a hanging scaffold is set in advance in the rafter 1 constituting the frame member 3 at the time of ground embedment as described later.

That is, FIGS. 6 and 7 show a hanger mounting piece 21 for a suspension scaffold attached to the rafter 1 and a suspension scaffold 30 supported thereby. The hanger mounting piece 21 includes an L-shaped fixed clamp piece 23a above the clamp body 22, and an L-shaped movable clamp piece 23b disposed so as to face the clamp piece 23a.
And a fastening bolt 24 which is screwed with the two clamp pieces 23a and 23b to advance and retreat the two clamp pieces so that they can come and go. As shown in the enlarged view of FIG. 8, male clamps 25a and 25b are formed at the tips of both clamp pieces so as to be fitted and inserted into the pair of concave grooves 13 in the rafter. A hanger 26 is integrally fixed to a lower portion of the clamp body 22. As shown in FIG. 6, this hanger is assembled in a triangular shape as an example, and a scaffold 30 with a handrail is integrally fixed to a lower portion of the hanger on one side. When attaching the mounting piece 21 to the rafter 1, the fastening bolt 24 is loosened to fix the fixed clamp piece 23.
a and the movable clamp piece 23b are separated, and the male ridges 25a and 25b at the tip of the clamp piece are separately attached to the rafter 1 respectively.
And fixed in the groove 13. Thereafter, the clamp pieces 23a and 23b are attached by tightening the fastening bolts 24 so as not to open. Reference numeral 30a in FIG.
Indicates a scaffold plate.

In order to install the unit assembled as described above on the external scaffold 7 as shown in FIG. 2, a girder 17 is placed on the scaffold 7 in advance, and then a movable carriage is placed on the girder. 1
8 is mounted on the mobile trolley and lifted by a crane using a lifting bracket 33 of the present invention described later. Since the base plates 19 for fixing the units are provided on the movable trolley 18 at predetermined intervals, the columns 2 of the units 6, 6a, 6b,... Are self-supported and fixed using the pin joints 20 on these base plates ( (Fig. 4). In FIG. 9, reference numeral 31 denotes a bogie scaffold, and reference numeral 32 denotes a ramp attached between the bogie 18 and the suspension scaffold 30.

Here, the details of the mobile trolley will be described.
As described above, this movable trolley is mounted on an external scaffold installed outside the structure B to be constructed, and when the tent is erected, the construction trolley of the structure is in progress. It is installed and used on an external scaffold assembled together. FIG.
This will be specifically described with reference to FIG. As shown in FIG. 12, the movable carriage is rotatably supported at a predetermined interval between a pair of channel-shaped main members 46 arranged facing each other so as to open outward, and a web of the two main members. Drive wheel 47 and driven wheel 48, a connecting member 49 fixed so as to connect the main members arranged opposite to each other, and a base plate 19 fixed to the upper surface of the truck. As described above, the base plate is for mounting the support columns 2 of the frame member 3 having a mountain shape at equal intervals.
The four base plates are fixed horizontally, and a total of four frame members 3 are laid on the four base plates via pin joints 20 at equal intervals. With this configuration, the above-mentioned four frame members are integrated, and run on a girder provided on an external scaffold as a one block as described later.

Reference numeral 17 in FIGS. 10 to 11 denotes a girder on which the driving wheel 47 and the driven wheel 48 are mounted. This is made of H-shaped steel or I-shaped steel, and is laid on a scaffold such that a flange surface on which wheels run is horizontal. Reference numeral 51 denotes a drive handle, which is driven by a drive wheel 4 via a speed reduction winding mechanism 52 comprising a chain and a group of sprockets.
7 can be moved manually.
Incidentally, the drive wheels 47 can be run not only manually but also by using an electric mechanism, but are not shown.
As shown in FIG. 12, a plurality of anti-sway rollers 53 and a plurality of wind-up prevention metal fittings 54 are also provided on the bogie main material 49 so as to bite the flange surface of the girder.
To hold the truck from the side and from below. Incidentally, reference numeral 55 indicates a bogie fixing bracket.

Next, referring to FIGS. 14 to 17, the construction of the lifting bracket (replacement jig) 33 will be described. FIG. 14 is a perspective view of the hanging fitting, which is composed of a hanging fitting main body 37, two sets of clamps 42 assembled and fixed to the frame member, and an L-shaped joint 43 connecting the hanging fitting main body and the two sets of clamps. ing.

FIG. 15 is a side view of the hanging bracket, FIG. 16 is a front view, and FIG. 17 is a view showing the clamp and the L attached to the clamp body.
It is a front view of a type | mold joint. In the figure, reference numeral 34 denotes a holding piece formed with a hook-shaped fitting groove capable of holding a long frame member such as a rafter or a purlin obliquely or horizontally. A pair of joint mounting plates 3 which are bent outward to form hooking portions 35 for wire hooking, and are fixed in the upright direction to the opposite sides of the fitting grooves.
6 are provided to constitute the hanging bracket main body 37. on the other hand,
As shown in FIG. 17, the clamp 42 includes an L-shaped fixed clamp piece 39a on the top of the clamp body 38, and an L-shaped movable clamp piece 39b and the both clamp pieces which are arranged to face the clamp piece 39a. And a tightening bolt 41 for screwing the two clamp pieces into and out of contact with each other. As shown in an enlarged view in FIG. 17, male tips 40a and 40b are formed at the tips of both clamp pieces so as to be fitted and inserted into the pair of concave grooves 13 in the rafter. The two sets of clamps 42, 4 thus configured
2 are prepared, and the clamps are mounted on a frame member having a rectangular cross section having at least a pair of concave grooves 13 which are respectively opened outward at the corners. An L-shaped joint 42 is interposed between the body 38 and the body 38 and is detachably locked by a bolt nut 43. Incidentally, the pair of joint mounting plates 36, the clamp body 38 and the L-shaped joint 42
Are provided with bolt holes into which the corresponding locking bolts can be inserted, and are temporarily fixed through the bolt holes as shown in FIG.

In addition, the above-mentioned hanging bracket (replacement jig) 33
When the unit is lifted by using, the holding pieces 34 are set on the outer side of each rafter 1, a sling rope R is hung via the hook 35, and four points are hung by the wire W and lifted. Good. FIG. 18 shows a state where the frame unit is lifted and installed on an external scaffold. The procedure for setting up the temporary tent described above is summarized and itemized as follows.

(A) A pair of girders are laid horizontally on opposing scaffolds installed outside the structure to be constructed, and the movable carts with scaffolds are movably mounted on the girders.

(B) On the other hand, two mountain-shaped frames composed of a pair of rafters and columns fixed to both lower ends of the rafters are used, and a support member made of a purlin girder or a breath is used between the two frames. Units that are connected and hut-assembled are assembled using the terrestrial method, and hanging scaffolds are attached to the erected units in advance.

(C) The two units are used as a set, and they are lifted and installed so as to be juxtaposed on the cart, and then, between the opposing frames of the juxtaposed units. A plurality of tent sheds are provided on the scaffold by using the hanging scaffolds attached at the time of the terrain to pass the purlin, and integrally forming four frames and three spans as one block.

(D) A canvas is stretched over a part between the roof and the columns of the tent sheds of the plurality of buildings. This canvas has both ends inserted into the concave groove of the frame member, and presses a holding bead onto it so that the canvas does not fall off the frame and the canvas can be opened and closed along the frame. Configure.

The temporary tent of the present invention is assembled by the above procedure. By the way, when changing the above-mentioned tent according to the construction progress state of a structure, this is performed in the following procedure. This will be described with reference to FIGS.
The hatched portion in the figure indicates the suspension scaffold.

(E) First, after removing the canvas stretched between the frames, a pair of girders is laid horizontally on a scaffold assembled according to the progress of construction of the structure to be constructed.

(F) Next, climb the climbing scaffold in each tent shed integrally formed with four frames and three spans as one block, remove the purlin at the center span and separate it into two units (FIG. 19). reference).

(G) After that, each one unit is lifted on a carriage mounted on the guide rail to change the arrangement. The lifting of the unit is performed by a crane using the above-mentioned lifting jig (replacement jig) 33 (see FIG. 20), and the unit is placed on an opposing external scaffold installed outside the structure to be constructed. Lift and fix the lower part of the column at a predetermined position of the movable carriage attached to the external scaffold.

(H) After the rearrangement, a tent house is integrally formed on the scaffold by passing a purlin between the opposing frames of a pair of units arranged side by side and assembling the hut. assemble multiple building T ₁ ~T _3. The main building is erected by using a suspension scaffold attached to the unit when laying the ground and passing the main building between adjacent units. In this case, as shown in FIG. 22, the temporary tent of the present invention covers the top of the structure B, and does not cover the entire top of the structure with the temporary tent. The space for taking in the materials and the temporary storage space S for re-arrangement are left, and the tent frame is horizontally movable via a movable cart for each block so that the re-arrangement position can be set arbitrarily.

[0028] The temporary tent of the present invention as described in detail above, is used in the construction site of the building, easy on the outside scaffolding of the structure to be built, as possible de be safely bridged prime sort. As a result, it is possible to cover the upper part of the structure and secure a work space that is not affected by the weather such as rainfall, snowfall, and wind, thereby improving work efficiency and work environment.

According to the present invention, as described above, it is possible to assemble a scaffold from the place where the construction has already been completed, and to replace the scaffold without using an aerial work vehicle at all. Also, instead of rebuilding every frame, instead of rebuilding the mast and lifting up the entire tent, it is divided into two units, and the units are lifted and rearranged. Replacement man-hours can be reduced. Furthermore, the present invention does not cover the entire upper part of the structure with the tent, leaving a part of the structure as a refilling space, and the tent itself can be freely moved on a guide rail via a movable cart, so that the refilling position is optional. Is different from a fixed tent that opens and closes the roof sheet and carries in and out the material.

[0030]

As described above, according to the lifting bracket of the present invention, a unit in which a frame member having a special structure used in constructing a temporary tent is formed alone or in a frame structure. , Can be securely fixed without causing any damage to the frame member, and can be slung via a shackle, so that it can be safely and quickly lifted to a predetermined position. The piece itself has a very simple structure and is durable It is extremely useful in constructing temporary tents.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a shed unit used in the present invention.

FIG. 2 is an explanatory diagram showing a state where a hut unit is attached to a building construction site.

FIG. 3 is an explanatory diagram showing a state in which the roof of the hut unit is covered with a canvas.

FIG. 4 is a detailed view of a frame member of a unit constituting the hut unit.

FIG. 5 is an explanatory diagram of a hollow mold member as a material of a frame member.

FIG. 6 is a front view showing a hanger mounting piece for a suspension scaffold attached to a rafter and a suspension scaffold.

FIG. 7 is a side view of the same.

FIG. 8 is an enlarged sectional view of a mounting portion of the hanger mounting piece.

FIG. 9 is a side view showing a mounting relationship between the unit and an external scaffold.

FIG. 10 is a side view of the movable cart.

FIG. 11 is a plan view of the movable trolley.

FIG. 12 is a vertical sectional view of the movable trolley.

FIG. 13 is a plan view showing a movable trolley and a trolley scaffold.

FIG. 14 is a perspective view of a lifting bracket for lifting a frame member.

FIG. 15 is a side view of the same.

FIG. 16 is a front view of the same.

FIG. 17 is a front view of the clamp and the L-shaped joint attached to the clamp body.

FIG. 18 is an explanatory view showing a state where the unit is lifted on an external scaffold.

FIG. 19 is an explanatory view showing a method of disassembling a tent shed integrally formed with four frames and three spans as one block for each unit.

FIG. 20 is an explanatory diagram showing a method of lifting one unit at a time.

FIG. 21 is an explanatory diagram showing a method of connecting two units.

FIG. 22 is a side view showing a state in which the temporary tent does not cover the entire uppermost portion of the structure but leaves a part as a space for taking in materials or a temporary space S for rearranging materials.

[Explanation of symbols]

 1: rafter, 2: prop, 3: frame member, 4: purlin, 5: brace, 6, 6a, 6b: shed unit, 7: scaffold, 10: canvas for tent (sheet material), 11: long-sized material, 12: connecting metal fittings, 13: concave groove, 14: connecting metal fittings, 15: bolt, 16: holding bead, 17: floor girder, 18: movable carriage, 19: base plate, 20: pin joint, 21: hanger mounting piece, 22 : Clamp body, 23a, 23b: clamp piece, 24: fastening bolt, 25a, 25b: male ridge, 26: hanger, 30: suspension scaffold, 30a: scaffold plate, 31: scaffold, 32: tarp, 33: Suspension fitting, 34: holding piece, 35: hook part, 36: joint mounting plate 37: suspension fitting main part, 42: clamp, 43: L-shaped joint

Claims (1)

(57) [Claims] 1. A hanging fitting for lifting a frame member for a tent, wherein a fitting groove having a hook-shaped cross section capable of obliquely or horizontally holding a long frame member such as a rafter or a purlin is formed. A pair of joint mounting plates, each of which has a holding piece, the upper end of which is bent outward to form a hook portion for hooking a wire, and which is fixed in an upright direction to the opposite side of the fitting groove. A clamp main body provided with an L-shaped fixed clamp piece on the upper part of the clamp body, and an L-shaped movable clamp piece and two clamp pieces which are arranged to face the clamp piece. A clamping bolt for moving the two clamp pieces so that the two clamp pieces can be moved toward and away from each other, and a male ridge formed to be fitted and inserted into a pair of concave grooves at the tip ends of the two clamp pieces. Prepare two sets of clamps, and Attachment is made to a frame member having a rectangular cross section provided with at least a pair of concave grooves opened outward at the corner portions, and an L-shaped member is provided between a John Int mounting plate of a main portion of the hanging bracket and a clamp body of the clamp. A lifting bracket for a temporary tent, which is detachably locked with a bolt and a nut via a joint.